johnstone



R. M C. JOHNSTONE SLITTING- MEANS Original Fii'ed m 2, 1923 2Sheets-Sheet 1 f/:6 BY

A TTORNEY Aug. 9, 1927. JOHNSTON: Re. 16,702

SLITTING MEANS Original'Filed May 2, 1923 2 sheets sheet 2 A TTORNE YBirch for slitting means,

at... 9, 927. UNITED ,STATES 7 Re. 16,702: PATENT. OFFICE.

non'nn'r Inc. sensuous, o1- nossnm: rams, new JERSEY, ass'renon r0 0mum! comm, or B-BO0KLYN,-NEW YORK, a conrona'rron or new YORK.

sm'r'rnwe mans Original 10. 1,897,000, dated August 81, 1938, Serial1T0. 636,134, fled lay 8, 1m. Application for rel-ac fled June 16,1997.Serial I0. 199,887. 7

a This invention relates to slittigg means and is more particularlydesign as an improvement upon the construction disclosed in theapplication of Cameron and filed August 25, 1920, Ser. No. 405,997. Oneof the difiiculties encountered an score cutting mechanism is thechattering of the cutters due to the vibration of the I machine, andthis condition is especially found in heavy duty machines. Thischattering is due to the fact that heretofore the cutter supportinglever was relatively cumbersome being made of cast iron and thereforewhen this lever received an outconsists of the features of construction,a;

preferred embodiment of which is disclosed n the specification andaccompanying draw- %isaid drawings: p Fig. 1 is a fragmentary view inrear elevation of a slitting device embodying the invention.

2 is a entary vertical sectional view of parts 0 a slitting and windingmachine showing the device of my invention in side elevation.

Fig. 3 is a fra entary view in front elevation of a slittmg deviceembodying the invention.

Fig. 4 is a view substantially similar to.

F 2 but on an enlar H scale.

ig. 5 isa view :tially s1m1lar to Fig. 3 but on an enlarged scale andwith partsbroken away and in section.

1 indicates a score cutter that acts against a :u roll which may be.either one of the win drums but, preferably and as osed, it is aseparate roll 2 just below the front winding drum 3.

' Preferably, a rocking support 4 and a carrier 5 transverselyadjustable on the rockingsup rtareusedassupportingelements of e scorecutter device, cutter supporting lever 6 being mounted at its a wickextending from said pan up between lower end on a pivotal support 7formed by the carrier. Lever 6, consists of two thin cheek plates 8 ofsteel connected by, blocks 9, the cutter being rotatably mounted betweenthe cheek plates and one block being arranged above and the other belowthe cutter. Pivotalsupport 7 of carrier 5 consists of two bearings asshown and the lower block is provided with two- 10 that rest in thebearings. Carrier '5 may be of any suitable materlal such as cast iron.Cutter supporting lever 6 ,is arranged in an upright position andsecured to its lower end, preferably, on the lower block and at a pointbelow its pivotal support, is a spring means 11 that bears' against tail12 of the carrier to thereby press the cutter against the backing roll.Mounted on lever 6 is-a pan 13, preferably of aluminum, containmg water,oil or other'substance, and 14 is the lower block and the cutter. Insome cases it is desirable to .use a separating'device that engagesbetween slitted sections 15 before winding. In this case, a separatingbracket 16, preferablyof aluminum, is ivotally mounted at 17 at theupper ;of lever 6. Ahandle 18 also of aluminum is employed to turn thisbracket into a forward or a rearward position, and a ring 19 anchored at20 on the lever lfol the bracket in either its retracted or advancedpodtion as it will be seen that the s ring passes over center 17 -whenthe brac at is adjusted. Carried by the bracket is a se arator holder21' secured in position by bo lt 22 passing through slots 23 whichlatter is elon ated transversely so that the holder can brought intoalinement with the slit between adjacent sections. The bracket carriesseparator blade 24 held in position by screw 25. p v

The cutter is brought into and out of engagement with the backing rollby turning rocking support 4 and the separator is thrown in and out ofaction by meansof handle 18. I 1

By reason of the light construction of the cutter supporting lever, theobjectionable chattering and hammering is to a large extent obviated.

I claim:

1. Slitting means comprising: a backing roll, a score cutter, means formounting the Ice score cutter including two cheek plates, two blocks,one above and one below the cutter, connecting the cheek plates, apivotal support engaging the lower block, andva spring member, j-ijor'pressingthe cutter against the backin roll, connected to the-lowerblock.

2. Sitting means comprising: a backing roll a score "cutter, a plvotalsupport, an

I uprlghtrcutter supporting lever mounted at its lower end on thepivotalsupport, and a spring member for ressing the cutter against thebac ing r0 1, connected to the lower end of the cutter supporting lever.

v 3. Slitting means comprising: a backing roll, a. score cutter,apivotal support, an upright cutter supporting lever mounted at 1tscutter, connecting the cheek plates, 1:. piv-' lower end on. the pivotalsupport, and a ressing the cutter. ro Y, connected to the spring memberfor against the bac ing lower end of the cutter supporting lever belowits pivot point.

4. Slitting means comprising: a backing .roll, "a score cutter,an-upright cutter sup porti lever consisting oftwo cheek plates, two- I)ocks, one aboveand one below the 5 otal support engaging the lowerblock, and

a spring member, for pressing the-cutter agamst'the' backing roll,connected to the lower blockr r 5. Slitting means comprising: a backingroll, a score cutter, an n right cutter 'supporting lever consisting 0two' cheek plates,

two blocks, one above and one below the cutter, connecting the cheekplates, a pivotal spring member, for pressing ,the cutter against thebacking roll, connected to the lower block below 1ts point of pivotalsupport. Y

62 Slitting means comprising a backing roll, a score cutter, a pivotalsupport, an

support engaging the lower block, and a upri ght cutter supportingle'venmounted at its lower end on the pivotal support, a spring member,for pressing the cutter against the backing roll, connected torthe lowerend of the cutter supporting lever, a pan, containing liquid, mounted atthe lower end of the lever, and a wick from said pan extending "belowthecutter'into engagement with the latter. i

7. Slitting means comprising: a backing right cutter supporting levermounted at 1ts lower end on the pivotal support, a spring member, forpressing the cutter against the backing roll, connected to the lower endof the cutter supportin lever, and a web separating device pivota lymounted at the upper end of the lever.

1 Signed at New York city, the

of Brooklyn, in the county of Kin and 7 roll, a score cutter, a pivotalsupport, an up- State of New York, this 25 dayo May,

' 1 Roster M00. Jormsromiif

